[llvm] [AArch64] Add C1-Nano scheduling model (PR #182316)

[via llvm-commits]

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results

* 169852 tests passed
* 3067 tests skipped
* 1 test failed

## Failed Tests
(click on a test name to see its output)

### LLVM
<details>
<summary>LLVM.tools/llvm-mca/AArch64/C1/Nano-neon-instructions.s</summary>

```
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-mca -mtriple=aarch64 -mcpu=c1-nano -instruction-tables < /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/tools/llvm-mca/AArch64/C1/Nano-neon-instructions.s | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/tools/llvm-mca/AArch64/C1/Nano-neon-instructions.s
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llvm-mca -mtriple=aarch64 -mcpu=c1-nano -instruction-tables
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/tools/llvm-mca/AArch64/C1/Nano-neon-instructions.s
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/tools/llvm-mca/AArch64/C1/Nano-neon-instructions.s:1583:15: error: CHECK-NEXT: expected string not found in input
# | # CHECK-NEXT: 1 4 0.50 smin v0.4s, v0.4s, v0.4s
# |               ^
# | <stdin>:521:38: note: scanning from here
# |  1 3 0.50 smin v0.16b, v0.16b, v0.16b
# |                                      ^
# | <stdin>:522:2: note: possible intended match here
# |  1 3 0.50 smin v0.4s, v0.4s, v0.4s
# |  ^
# | 
# | Input file: <stdin>
# | Check file: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/tools/llvm-mca/AArch64/C1/Nano-neon-instructions.s
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |              .
# |              .
# |              .
# |            516:  1 3 0.50 smax v0.4h, v0.4h, v0.4h 
# |            517:  1 3 0.50 smax v0.8b, v0.8b, v0.8b 
# |            518:  1 3 0.50 smaxp v0.2s, v0.2s, v0.2s 
# |            519:  1 3 0.50 smaxp v0.4h, v0.4h, v0.4h 
# |            520:  1 3 0.50 smaxp v0.8b, v0.8b, v0.8b 
# |            521:  1 3 0.50 smin v0.16b, v0.16b, v0.16b 
# | next:1583'0                                          X error: no match found
# |            522:  1 3 0.50 smin v0.4s, v0.4s, v0.4s 
# | next:1583'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | next:1583'1      ?                                  possible intended match
# |            523:  1 3 0.50 smin v0.8h, v0.8h, v0.8h 
# | next:1583'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            524:  1 3 0.50 sminp v0.16b, v0.16b, v0.16b 
# | next:1583'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            525:  1 3 0.50 sminp v0.4s, v0.4s, v0.4s 
# | next:1583'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            526:  1 3 0.50 sminp v0.8h, v0.8h, v0.8h 
# | next:1583'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            527:  1 4 0.50 smlal v0.2d, v0.2s, v0.2s 
# | next:1583'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |              .
# |              .
# |              .
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1

--

```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/182316